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ARIANNA KNASIAK
NPI 1699536839
Physician Assistant in Hartland, MI

Active since January 16, 2024PECOS EnrolledAccepts Medicare Assignment
4831 BULLARD RD, HARTLAND, MI 48353(810) 923-7992 Get Directions Write a Review

NPPES record last updated: December 19, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Arianna Knasiak NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ARIANNA KNASIAK (NPI 1699536839) is an individual physician assistant in Hartland, Michigan, licensed in Michigan (5601012796) and active in the NPI registry since January 2024. She is enrolled in Medicare PECOS, is affiliated with St Joe Mercy Hospital System Livonia, and is a graduate of Other (2024).

NPPES Registry Identity

NPI1699536839
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameARIANNA KNASIAK
Location Address4831 BULLARD RDHartland, MI 48353-1316
Mailing Address4831 Bullard RdHartland, MI 48353-1316 · (810) 923-7992
Phone(810) 923-7992
Sole ProprietorNo
Medical School CMSOtherGraduated 2024
Enumeration DateJanuary 16, 2024
Last NPPES UpdateDecember 19, 2025
NPPES CertifiedDecember 19, 2025
✔ NPI 1699536839 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License✔ Licensed in MI · 5601012796
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
4831 BULLARD RD, Hartland, MI 48353
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Arianna Knasiak is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1456888254
PECOS Enrollment IDI20241218000120
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

St Joe Mercy Hospital System Livonia

Acute Care Hospitals · Livonia, MI
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number230002
Location36475 Five Mile RoadLivonia, MI 48154 · Wayne County
Emergency services Birthing friendly

Saint Joseph Mercy Livingston Hospital

Acute Care Hospitals · Howell, MI
5/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number230069
Location620 Byron RdHowell, MI 48843 · Livingston County
Emergency services

Trinity Health Ann Arbor Hospital

Acute Care Hospitals · Ann Arbor, MI
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number230156
Location5301 E Huron River DrAnn Arbor, MI 48106 · Washtenaw County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 48353 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$84.74 typical visit price
range $54.34 – $166.68
Typical copayment $21.18 (range $13.58 – $41.67)
Most-billed visit code 99203
Established Patient
$68.07 typical visit price
range $17.09 – $135.40
Typical copayment $17.01 (range $4.27 – $33.85)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

GABRIELA KNASIAK
Behavior Technician
4831 BULLARD RD
HARTLAND, MI 48353
Livingston County (810) 522-7795

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Arianna Knasiak's NPI number?

The NPI number for Arianna Knasiak is 1699536839. It was assigned to this individual provider in the NPPES registry on January 16, 2024.

Where is Arianna Knasiak located?

Arianna Knasiak practices at 4831 Bullard Rd, Hartland, MI 48353. The listed phone number is (810) 923-7992.

What is Arianna Knasiak's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Arianna Knasiak enrolled in Medicare?

Yes. Arianna Knasiak is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Arianna Knasiak accept?

Health plans from Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company list Arianna Knasiak as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Arianna Knasiak affiliated with any hospitals?

According to CMS data, Arianna Knasiak is affiliated with St Joe Mercy Hospital System Livonia, Saint Joseph Mercy Livingston Hospital and Trinity Health Ann Arbor Hospital.

When was this NPI record last updated?

The NPPES record for Arianna Knasiak was last updated on December 19, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.